| Overview | Grid | Race Entries |
| Race | Qualifying |
| Race Name: | XLIII Grand Prix de l'ACF |
| Track: | Rouen-les Essarts |
| Round: | 4 of 8 |
| Race date: | Sunday, July 7th, 1957 |
| Race time: | 14.00 |
| 1st | 2nd | 3rd | |
| Driver | Juan Manuel Fangio | Luigi Musso | Peter Collins |
| Constructor | Maserati | Ferrari | Ferrari |
| Car | Maserati 250F | Ferrari Lancia 801 | Ferrari Lancia 801 |
| Engine | Maserati 250 F1 | Ferrari Lancia DS 50 | Ferrari Lancia DS 50 |
| Tyre | Pirelli | Englebert | Englebert |
| Time | 3:07:46.4 | 3:08:37.2 | 3:09:52.4 |
| Gap | 50.8 secs | 2m 6.0 secs |
| P | No. | Driver | Qual | Race | Total | |
| 1 | 2 | Juan Manuel Fangio Maserati | 2:21.5 0 | No Time 77 | 2:21.5 77 | |
| 2 | 10 | Luigi Musso Ferrari | 2:22.7 0 | 2:22.4 77 | 2:22.4 77 | |
| 3 | 4 | Jean Behra Maserati | 2:22.6 0 | No Time 69 | 2:22.6 69 | |
| 4 | 6 | Harry Schell Maserati | 2:23.2 0 | No Time 70 | 2:23.2 70 | |
| 5 | 12 | Peter Collins Ferrari | 2:23.3 0 | No Time 77 | 2:23.3 77 | |
| 6 | 20 | Roy Salvadori Vanwall | 2:25.1 0 | No Time 25 | 2:25.1 25 | |
| 7 | 14 | Mike Hawthorn Ferrari | 2:25.6 0 | No Time 76 | 2:25.6 76 | |
| 8 | 16 | Maurice Trintignant Ferrari | 2:25.9 0 | No Time 23 | 2:25.9 23 | |
| 9 | 8 | Carlos Menditéguy Maserati | 2:26.1 0 | No Time 30 | 2:26.1 30 | |
| 10 | 18 | Stuart Lewis-Evans Vanwall | 2:27.6 0 | No Time 30 | 2:27.6 30 | |
| 11 | 26 | Ron Flockhart BRM | 2:27.8 0 | No Time 2 | 2:27.8 2 | |
| 12 | 28 | Herbert MacKay-Fraser BRM | 2:29.9 0 | No Time 24 | 2:29.9 24 | |
| 13 | 22 | Jack Brabham Cooper-Climax | 2:30.9 0 | No Time 4 | 2:30.9 4 | |
| 14 | 30 | Horace Gould Maserati | 2:35.0 0 | No Time 4 | 2:35.0 4 | |
| 15 | 24 | Mike MacDowel Cooper-Climax | 2:38.6 0 | No Time 30 | 2:38.6 30 | |
| 16 | 24 | Jack Brabham Cooper-Climax | No Time 68 | No Time 68 |